Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
266742 (2009 SJ43)
Classification: Main-belt Asteroid          SPK-ID: 2266742
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09298540067378282 4.7158e-08  
a 2.723938761160965 2.1042e-08 au
q 2.470652224043565 1.3292e-07 au
i 3.726451104851707 5.5245e-06 deg
node 293.5014224672739 0.00010637 deg
peri 142.2189516629586 0.00011417 deg
M 90.62180537513301 4.0975e-05 deg
tp 2458587.143619630429
(2019-Apr-13.64361963)
0.00018627 TDB
period 1642.080471880327
4.50
1.9027e-05
5.209e-08
d
yr
n .2192340790629878 2.5403e-09 deg/d
Q 2.977225298278365 2.2998e-08 au
  Orbit Determination Parameters
   # obs. used (total)      223  
   data-arc span      10337 days (28.30 yr)  
   first obs. used      1991-10-14  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55054  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:49:19  

Additional Information
 Earth MOID = 1.4872 au 
 Jupiter MOID = 2.22558 au 
 T_jup = 3.348 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457038.5 (2015-Jan-16.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09155898531033153 4.6916e-08  
q 2.475345822493452 1.3194e-07 au
tp 2456948.498502911873
(2014-Oct-17.99850291)
0.00018848 TDB
node 293.6135917575024 0.00010616 deg
peri 143.0846672746655 0.00011422 deg
i 3.729921448640915 5.529e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      223  
   data-arc span      10337 days (28.30 yr)  
   first obs. used      1991-10-14  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55054  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:49:19  

Additional Information
 Jupiter MOID = 2.22558 au 
 T_jup = 3.348 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.201122430982622E-15 -6.126851947861121E-15 -1.977297749626117E-12 -1.011269550719072E-14 -4.5936174401599E-13 -1.051599544313423E-15
q -6.126851947861121E-15 1.740819792380364E-14 5.332418337054448E-12 2.736599236913596E-14 1.243087805116491E-12 3.282538646542398E-15
tp -1.977297749626117E-12 5.332418337054448E-12 3.552596498394538E-8 6.874399417582288E-11 8.009120211887637E-9 4.59767623290391E-12
node -1.011269550719072E-14 2.736599236913596E-14 6.874399417582288E-11 1.127057275568239E-8 -1.123094704905904E-8 1.335143747247699E-10
peri -4.5936174401599E-13 1.243087805116491E-12 8.009120211887637E-9 -1.123094704905904E-8 1.304643270193879E-8 -1.321841061179207E-10
i -1.051599544313423E-15 3.282538646542398E-15 4.59767623290391E-12 1.335143747247699E-10 -1.321841061179207E-10 3.057005291367037E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO460147  
diameter diameter 2.435 km 0.680 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266742 (2009 SJ43)          Discovered 2009-Sep-16 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2087-May-21 11:06 00:04 Hebe 0.040833432021429 0.0408153810866087 0.0408515001553817 6.27043595212357 6.27043592784383 2483461.962786815 3.61342168454056 1600.88737699985 56.255755919945 -55.831235327942 89843.6980089406 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 12:49:21 2020-Feb-25 12:49
2115-May-18 04:07 00:50 Iris 0.0255976698008902 0.0255862138022207 0.0256091337952972 1.78284989654671 1.7828497705794 2493684.671453827 50.4158459055586 914.080532976707 54.148542537296 -51.557512023401 55299.5987164347 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 12:49:21 2020-Feb-25 12:49
2145-Aug-29 02:40 00:04 Eunom 0.0463707226450022 0.0463264086403301 0.046415071873259 3.49555321365958 3.49555312705635 2504745.611166113 3.55758604614864 2987.18329420423 63.4273168955078 42.3748243722167 73630.9793713268 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 12:49:21 2020-Feb-25 12:49
2178-Mar-19 05:26 00:16 Hygie 0.00282686816738695 0.00279699441620081 0.00285770802957644 3.04131319875676 3.04130870472595 2516635.726706475 16.3842673906618 3009.58546997692 101.087044658409 59.9568404609458 3609.01166923337 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 12:49:21 2020-Feb-25 12:49

Alternate Designations
 2009 SJ43 = 2005 WU175 = 2005 YS11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-28 00:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin